AT25640A-10PI-2.7

Overview

Product Category

AT25640A-10PI-2.7 belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuits.

Use

This product is primarily used for non-volatile storage of data in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile memory: The AT25640A-10PI-2.7 retains stored data even when power is removed.
• High storage capacity: This EEPROM has a storage capacity of 256 kilobits (32 kilobytes).
• Serial interface: It utilizes a serial communication protocol for data transfer.
• Low power consumption: The AT25640A-10PI-2.7 operates at a low voltage and consumes minimal power.
• High reliability: It offers reliable data retention and endurance characteristics.
• Wide temperature range: This product can operate within a temperature range of -40°C to +85°C.

Package and Quantity

The AT25640A-10PI-2.7 is available in a standard 8-pin DIP (Dual Inline Package) package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Maximum Clock Frequency: 10 MHz
• Write Time: 5 ms (typical)
• Data Retention: 100 years (minimum)
• Endurance: 1 million write cycles (minimum)

Pin Configuration

The AT25640A-10PI-2.7 has the following pin configuration:

┌───┬───┐ │ 1 │ 8 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 4 │ 5 │ └───┴───┘

1. Chip Select (CS): Used to enable or disable the device.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Used to input data into the device.
4. Ground (GND): Connected to the ground reference of the system.
5. Serial Data Output (SO): Outputs data from the device.
6. Write Protect (WP): Used to protect the memory from accidental writes.
7. Hold (HOLD): Allows pausing serial communication without losing data.
8. Power Supply (VCC): Connected to the power source.

Functional Features

• Byte and Page Write: The AT25640A-10PI-2.7 supports both byte-level and page-level write operations, allowing flexible data storage.
• Sequential Read: It enables sequential reading of stored data, enhancing read efficiency.
• Software Protection: The write protect pin (WP) can be used to prevent accidental writes to the memory.
• Hardware Protection: The hold pin (HOLD) allows pausing serial communication without losing data.

Advantages

• High storage capacity for various applications.
• Low power consumption, making it suitable for battery-powered devices.
• Wide temperature range ensures reliable operation in different environments.
• Easy integration due to the widely used DIP package.
• High endurance and data retention characteristics ensure long-term reliability.

Disadvantages

• Limited write cycles compared to other non-volatile memory technologies.
• Relatively slower write time compared to some alternatives.
• Requires a dedicated serial interface for communication.

Working Principles

The AT25640A-10PI-2.7 utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It stores information in a grid of memory cells, with each cell capable of holding one bit of data. The stored data can be read, written, or erased using specific electrical signals.

Detailed Application Field Plans

The AT25640A-10PI-2.7 finds applications in various fields, including: 1. Microcontrollers: Used for storing program code, configuration settings, and calibration data. 2. Computers: Employed for storing BIOS settings, system parameters, and user preferences. 3. Consumer Electronics: Utilized for storing device-specific data, such as firmware updates, user profiles, and log files.

Alternative Models

Several alternative models to the AT25640A-10PI-2.7 include: - AT25080A-10PU-2.7: 8 kilobit (1 kilobyte) capacity EEPROM. - AT25256A-10PU-2.7: 256 kilobit (32 kilobyte) capacity EEPROM. - AT25128A-10PU-2.7: 128 kilobit (16 kilobyte) capacity EEPROM